Road-packing machine



2 Sheets-Sheet l R. A. THOMPSON ROAD PACKING MACHINE Filed July 17 l 1925- lE-EE l'.

l.' Ill- E l Jan. 19 1926.

n fo E d i. r M ///////////fffl ll n.. 0 M/ v Jan. 19 1926. I 1,570,582

. R. A. THOMPSON ROAD PACKING MACHINE Filed July 1'7, 1925 2 Sheets-Sheet 2 @e 46 4A QH/'3 45 a@ O-OGGOOO ano: M14

vPatented Jan. 19, v1926.

' UNITED STATES PATENT oEFlcE.

' ROBERT ARTHUR momrson, or Naw ORLEANS, Louisiana.

Roan-PACKING lncnnm.

To all lwhom t may concern,.-

Be it known that I,. ROBERT ARTHUR THOMPSON, a citizen' o-f the United \States, residing at New Orleans, in the parish of Orleans and State of Louisiana, have in- -vented certain new and useful Improveinvention consists ,in the novel details of construction 'and combinations of 'parts more fully hereinafter disclosed and particularly pointed out in the claims.

Referring to the accompanying drawings forming a part of this specification, in which like numerals designate like parts in all the views Figure 1 is a plan View of the road packing element of a machine made 1n accordf ance with this invention;

Fig. 2 is a sectional view of the parts shown in Fig. 1;

Fig. 3 is a side elevational view of the parts shown in Fig. l; i

Fig. 4 is a plan view of the drag element of the machine detached from that portion vof the machine shown in Fig. 3;

Fig. 5 is a plan view of a portion of they parts shown in Fig.. 4 detached from the drag; and Fig. 6 is a sectional view 'taken on the line 6-6 of Fig. 5, looking in the direction of the arrows.

1 indicates' a hollow central axle made in the form of a tube provided with the cap closing membersA 2 and 3 screw threaded' on the ends of the tubular member 1, as shown, and 4 indicates a rectangular frame on which said tubular member 1 is mounted. Saidframe extends entirely around the road acking element of the machine, as vbest illustrated in Fig. 1, and is provided at its corners with the corner plates 5 secured to i the frame 4 as by the rivets or other fastenings, and said frame 4 is further provided on the inside of its corners with the angle bracing members 7 as shown. Thus is produced an exceedingly stiff and strong frame- Application led July 17, 1925. Serial No. 44,836.

workforthe road packing element. To one of the members 8 ofthe fra-me 4 is secured the drag bar9, as illustrated, and outside of the said drag bar is a flat strap-like steel member 10 which extends along the end portions of the frame 4 and terminates at the rear of said frame, as indicated at 11 on' veach end thereof. Thissaid strap member 10 is secured to the frame member'by the rivets 12 best shown in Fig. 3, and sustains practically all .the vpull or drag that is exerted on the machine, -while the member 9 serves to center the pulling element or clevi 13, as will vbe readily understood.

The frame members 4 can be made of any suitable cross sectional material but channel irons are preferred, as best shown in Figs. 1 and 2.l These saidchannel irons 4 at the end portions of the frame are suitably mounted or supported upon a square bearing block 15 at each end of the tubular member 1, as will be clear from Figs. 2 and 3. The

frame 4 is, at each end of the tubular member 1, firmly held or secured to the said square bearing blocks 15 by any suitable means, as for example, by theU-shaped rod- -like members 16 which pass down throu h the channel members 4 at each end of t e device and encircle the said bearing blocks 15, and on their free ends are secured as `by the nuts 17 as best shown in Figs. 2 and 3. In order to hold the members 16-in place, it

is convenient 4to provide the bearing blocks 15 with indentations on their under Asides as indicated at 18 in Fi 2. Further, in order to more securely hol the bearing blocks 15 in place they are provided with projections 19, see Fig. 2, that extend through perforay tions or orifices in the tubular member 1, as will be clear from the drawings. These projections 19 have the further function of preventing the tubular axle 1 from rotating.

ounted upon said tubular axle 1 area plurality ofl disk-like members 21 each provided with a strengthening rib 22 on each side and with a hubflike member 23, as shown. Said hub-like members 23, asbest illustrated in Figs. 1 and2, are adapted to form broken or lap-jointswith each other. That is to say, the hub-like member 23 'of one disk member 21 is disposed relatively close to the `tubular member 1, while the succeeding hub-like member 23 is disposed further away from the tubular member 1 and overlies the extending portions of the adjacent hub-like members 23 'on each side thereof, the effect being to providea b roken or overlappin joint 24 due to the nesting. of the hubs 23 etween the various .disklke members 21 as shown, thus providing a means of preventing dust, dirt, or other best shown in Fig. 2, is provided with numerous perforations 28 preferably two perforations to each bronze bearing` member 26 and at each end of the tubular axle member 1 is preferably provided an oil cup 29 for the purpose of automatically suppymgroil to the interior 30 of the tubular axle 1. his oil finds its way continuously through the perforations 28 to the bronze bearing members 26 and thus keeps the road making disks 21 well lubricated. i

To therear members 11 of the frame 4, as at 31, is secured a chain or other attachment 32, to which may be secured the drag member designated as a whole by the numeral 33. This drag member is provided with links or other attachments 34 on each side which are adapted to be attached to the. hook-like members 35 of the chain 32, (only one of which members 35 are shown), and thus is the drag member as a whole pulled along the surface o f the road after the roadmalnng member designated as a whole by the numeral 37. The said drag member 33 is provided witha pair of scraping members 38 secured together as by the short bar 39 and the longer bar 40, as illustrated in Fig. 4, and said bars 39 and 40 are secured to each other by cross bars 41 and 42. The

lower edges 43l and 44-of the members 38 are so disposed as to lie entirely upon-the surface of the road to be smoothed or scraped whilethey are inclined to each other at an angle, as illustrated in Fig. 4. These said scraping members 38 are of unequal lengths as shown and the edge 43 of one of said members is preferably made to extend beyond the edge 44 of the other members, so that a smoother disposition ofthe road ma terial is had than would be the case if the bars 38 were made of equal length. The members 38 are conveniently made of any suit-able material as illustrated and are provided with angle bars 45 and 46 of steel in order to stiii'en the same as will be clear from Figs. 4, 5 and 6. These said angle bars 45 and 46 further provide. a convenient navata:l

means for attaching the ends of the cross bars 39 and 40, as will be clear from Fig. 4,

chine will be clear from the foregoing, butv may be briefly summarized as follows: Any suitable power, elther horse power or traction power, ma be attached to the member 13, while the rag member 33 is attached to the rear of the road making member 37, as by the hooks 35, and the entire device is dragged over the surface of a newly made road. The individual disks 21 will reduce furrows in the surface of this road, t us impacting or solidifying the material to an extent, while the drag member 33 will follow after the disks 21 and serve by its scra ing edges 43 and 44 to pull over the materia lying between the furrows produced by the disks 21 and to thus fill up said furrows to a greater or less extent. After this action is had, the surface of the roadwill be more or less impacted and relatively smooth. The machine is then carried over the road i again making a new set of furrows and having said furrows again filled by the scraper members 38, and the process is repeated until the surface-of the road is impacted and rendered smooth or solid. Of course, the disks 21 being more or less thin in cross section, they will sink to greater or less depths into the road material, especially at first and they Will clog up with dirt and road making material in between their surfaces, and especially in between their ribs 22. To render the device self-cleaning, there is attached to the vunder side of the frame 4, as best illustrated in Figs. l and 3, a scraping plate 50 provided with the slightly bowed and forwardly bent cleaning fingers 51 which fit in between the ribs 22 and the disks 21, as shown. This late 50 and fingers 21 are preferably ma e of steel and Serve to automatically clean the said disks 21, as will be readily understood.

' It is obvious that those skilled in the art may vary the details of construction as well as the arrangement of parts without de partingfrom the spirit of the invention, and therefore it is not desired to be limited to the foregoing disclosure except as may be required by the claims.

What is claimed is 1. In a road packing machine, the combination of a hollow axle; a plurality of road packing disks rotatably mounted with relation to said axle and provided with laterally extending overlapping hubs to Y Leidse# relation to .said axle and provided with laterally extendin overlapping hubs to form a broken2 ust excluding joint; a frame Surroundlng said disks and mounted on said axle; and means for automatically lubricating Said disks while the device is inoperation. i

3. In a road packing machine, the combinationof. a. `hollov'vaxle; a plurality of road packin disks provided with nested hubs rotata l mounted with relation tosaid axle; a. ramesurroundin said disks `and mounted onsaid axle; disk cleanin members secured to said frame and disposed between said disks; andmeans for automatieally lubricatingsaid 'disks while the device is in operation.

4. In a road packing machine, the oo mbination of a hollow axle; a plurality p road packing disks provided with nested hubs having ring like wearing ro`v tatably mounted with relation to said axle; a frame surrounding said disks and mountedon said axle; bearing blocks preventin said axle from'rotating and' supporting sai frame; and means for automatically lubrieating said disks while the device is 1n oper-vl ation. v 1

5. Ina road packin device, the combination of a hollow r orated axle; bearing blocks'itted to sai axle and preventing the latterfrom rotating; closuresfor the ends 4of said hollow axle; means for supplying a lubricant to the interior of said axle; a p

rality of road making disks provided with nested hubs mounted for rotation on said axle and adapted to receive said lubricant;

a frame mounted on said bearing blocks;

a lurality-fof cleaning members carried by `said frame and dis osed between'said disks;

and means for ro ling said disks over the surface of a'road'. Y

In testimony whereof I aix my signature. Y

ROBERT 4AR'IH'UR THOMPSON. 

